/* Demo Note:  This demo uses a FileProgress class that handles the UI for displaying the file name and percent complete.
The FileProgress class is not part of SWFUpload.
*/


/* **********************
   Event Handlers
   These are my custom event handlers to make my
   web application behave the way I went when SWFUpload
   completes different tasks.  These aren't part of the SWFUpload
   package.  They are part of my application.  Without these none
   of the actions SWFUpload makes will show up in my application.
   ********************** */
function fileQueued(file) {
	try {
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setStatus("等待上传...");
		progress.toggleCancel(true, this);

	} catch (ex) {
		this.debug(ex);
	}

}

function fileQueueError(file, errorCode, message) {
	try {
		if (errorCode === SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED) {
			alert("选择上传的文件数量太多，\n" + (message === 0 ? "上传文件数量到达上限。" : (message > 1 ? "您选择的文件超过 " + message + " 个文件。" : "上传文件数量可能已超过上传文件数量上限。")));
			return;
		}

		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			progress.setStatus("文件太大。");
			this.debug("错误: 文件太大, 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			progress.setStatus("不能上传0字节文件");
			this.debug("错误: 0字节文件, 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			progress.setStatus("文件类型错误");
			this.debug("错误: 文件类型错误, 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		default:
			if (file !== null) {
				progress.setStatus("未处理错误");
			}
			this.debug("错误: " + errorCode + ", 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
	try {
		if (numFilesSelected > 0) {
			document.getElementById(this.customSettings.cancelButtonId).disabled = false;
		}
		
		/* I want auto start the upload and I can do that here */
		
		var fileCount=numFilesSelected+this.customSettings.scope.getFilesLength();
		
		if(this.customSettings.autoUpload){
			var max=this.customSettings.scope.maxFileCount;
			if(max>0){
				if(fileCount>max){
					alert('最多上传：'+max+'个文件！');
					return;
				}
			}else{
				this.startUpload();
			}
		}
	} catch (ex)  {
        this.debug(ex);
	}
}

function uploadStart(file) {
	try {
		/* I don't want to do any file validation or anything,  I'll just update the UI and
		return true to indicate that the upload should start.
		It's important to update the UI here because in Linux no uploadProgress events are called. The best
		we can do is say we are uploading.
		 */
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setStatus("上传...");
		progress.toggleCancel(true, this);
	}
	catch (ex) {}
	
	return true;
}

function uploadProgress(file, bytesLoaded, bytesTotal) {
	try {
		var percent = Math.ceil((bytesLoaded / bytesTotal) * 100);

		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setProgress(percent);
		progress.setStatus("上传...");
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadSuccess(file, serverData) {
	try {
		this.customSettings.success(file,serverData);
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setComplete();
		progress.setStatus("完成");
		progress.toggleCancel(false);
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadError(file, errorCode, message) {
	try {
		var progress = new FileProgress(file, this.customSettings.progressTarget);
		progress.setError();
		progress.toggleCancel(false);

		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
			progress.setStatus("上传错误: " + message);
			this.debug("错误: HTTP 错误, 文件名称: " + file.name + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			progress.setStatus("上传失败");
			this.debug("错误: 上传失败, 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.IO_ERROR:
			progress.setStatus("服务器 (IO) 错误");
			this.debug("错误: IO 错误, 文件名称: " + file.name + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			progress.setStatus("安全错误");
			this.debug("错误: 安全错误, 文件名称: " + file.name + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			progress.setStatus("上传文件大小超过上限");
			this.debug("错误: 上传文件大小超过上限, 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
			//progress.setStatus("Failed Validation.  Upload skipped.");
			//this.debug("Error Code: File Validation Failed, File name: " + file.name + ", File size: " + file.size + ", 信息: " + message);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			// If there aren't any files left (they were all cancelled) disable the cancel button
			if (this.getStats().files_queued === 0) {
				document.getElementById(this.customSettings.cancelButtonId).disabled = true;
			}
			progress.setStatus("已取消");
			progress.setCancelled();
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			progress.setStatus("已停止");
			break;
		default:
			progress.setStatus("未处理错误: " + errorCode);
			this.debug("错误: " + errorCode + ", 文件名称: " + file.name + ", 文件大小: " + file.size + ", 信息: " + message);
			break;
		}
	} catch (ex) {
        this.debug(ex);
    }
}

function uploadComplete(file) {
	if (this.getStats().files_queued === 0) {
		document.getElementById(this.customSettings.cancelButtonId).disabled = true;
	}
}

// This event comes from the Queue Plugin
function queueComplete(numFilesUploaded) {
	var status = document.getElementById(this.customSettings.statusDomId);
	status.innerHTML = numFilesUploaded + " 文件" + (numFilesUploaded === 1 ? "" : "") + " 上传成功。";
}
